Lub hauv paus rau phau ntawv
Nyob rau hauvSMT Ntau Lawm Kab, Solder muab tshuaj luam luam ntawv yog thawj kauj ruam hauv tag nrho cov txheej txheem. Yog hais tias cov ham muab tshuaj tsw qab yog qhov tsis ncaj lossis misaligned, nws tuaj yeem ua rau cov soldering tsis zoo, luv luv, lossis tseem sib xyaw ua ke.
Rau ntau ntau me me thiab nruab nrab-qhov sib xyaw ntawm cov tuam txhab electronics,Los Ntawm Txhais Tes Solder Muab Tshuaj Txhuam Tshuab Luam Ntawvtau siv dav vim lawv tus nqi qis thiab kev ua haujlwm hloov tau. Txawm li cas los xij, phau ntawv qhia kev muab tshuaj txhuam rau ntau ntxiv rau tus neeg teb xov xwm lub siab, tshwj xeeb yog cuam tshuam nrog kev sib txawv thiab sib txawv ntawm cov ham muab luam ntawv.
Kab lus no yuav delveeee kaum thiab siab ntawm kev tuav cov lus qhia hloov kho kom tau cov neeg siv khoom zoo thiab ua kom zoo dua kev ua haujlwm.
I. Cov qauv theem pib thiab ua haujlwm ntawm phau ntawv cov rooj luam ntawv
1. Cov khoom sib xyaw ntawm cov ntawv luam ntawv
- Stencil: siv los txhais cov solder muab tshuaj txhuam chaw luam ntawv.
- SqueeGee: Lub luag hauj lwm rau tusyees thov cov camer muab rau cov qhib hauv stencil.
- Sau cov lus: Txhawb nqa PCB thiab tso cai rau kev kho kom micro-kho hauv X / Y / Z lus qhia.
- Pneumatic / Phau Ntawv Tswjhwm System: Kev tswj hwm kev nqa khoom thiab luam tawm kev ua.
2. Cov lus qhia luv luv ntawm kev ua haujlwm
- Ruaj khov lub stencil rau lub rooj luam ntawv.
- Tso cov ham muab rau saum tus stencil.
- Lub squeeGee thawb cov ham muab tshuaj txhuam los ntawm stencil qhib ntawm lub kaum sab xis tshwj xeeb thiab lub siab.
- Cov ham muab tshuaj txhuam yog precisely luam tawm rau PCB cov ntaub qhwv.
- Tom qab luam ntawv, pib nrog kev sib koom ua ke uas siv ade thiab muab tshuabthiabReflow Cubsoldering.
Ii. Cov ntsiab lus cuam tshuam cuam tshuam luam ntawv precision: squeegee lub thiab siab
1. SqueeGee AngleGle
1.1 txhais
Lub SqueeGee lub kaum ntse ntse yog hais txog lub kaum sab xis ntawm squeegee thiab tus hlau mesh, feem ntau yog xws li 45℃rau 75 degree.
1.2 cuam tshuam
Dhau ib lub kaum ntse ntse (<45°): The squeegee tends to "slide" rather than "press," resulting in insufficient solder paste filling.
Excessively large angle (>75 Degree): Yuam kev muaj zog rau ntawm lub zuaj, ua rau kev siv tshuaj ntsuam thiab solder muab rho tawm.
Qhov zoo tshaj plaws: 60 Degree rau 70 degree, ua kom zoo tshaj solder muab cov nqi hloov pauv thaum muab cov tshuaj ntsuam.
1.3 Pom zoo cov ces kaum rau hom sib txawv
| Cheebtsam Cheeb Tsam | Pom zoo SqueeGee kaum |
| Cov Cheebtsam (0402/0603) | 65 Degree |
| QFP Cheebtsam | 60℃-65 degree |
| BGA Cheebtsam | 60 degree |
| Cov khoom siv nplua-pw | 65 Degree -70 degree |
2. SqueeGee Siab
2.1 Kev Txhais Lus
SqueeGee siab hais txog lub zog ntsug thov los ntawm squeegee thaum thawb muab tshuaj txhuam.
2.2 cuam tshuam
Kev tiv thaiv qis dhau: Solder muab tshuaj yuav tsis tuaj yeem sau cov stencil qhib, uas ua rau tsis muaj luam tawm.
Kev kub siab dhau: Tej zaum yuav ua rau stencation deformation, SqueeGee hnav, cam muab muab muab tso rau hauv, lossis txoj hlua khi.
Lub siab lub siab tus nqi: Teem raws li soldering paste viscosity, stencil tuab, thiab sib xyaw ua si.
2.3 Pom zoo rau siab rau cov ntawv thov sib txawv:
| Daim Ntawv Thov Kev Thov | Pom zoo siab ntau yam (kg / cmo) |
| High-density nplua-pitch laug cam | 2.5–3.0 |
| Chaw luam tawm loj | 3.0–4.0 |
| Precision BGA / QFN NTIM | 2.0–2.5 |
| High-Viscososity Solder Paste | Tsawg dua siab dua (+0.5 kg / cm ach) |
III. Siv Phau Ntawv Qhia rau Phau Ntawv Luam Ntawv Luam Ntawv SqueeGee Kev Hloov Kho
Txhawm rau pab cov neeg ua haujlwm tau ua tiav lub kaum sab xis sib dhos thiab lub siab calibration, peb tau tso cai rau tsib-kauj ruam calibration txoj kev:
Kauj ruam 1: Tshawb xyuas Steel Mesh Txheej Txheem Nrog PCB
- Tshawb xyuas yog tias tus hlau mesh qhib tau ua tiav nrog PCB cov ntaub qhwv.
- Ntxuav cov hlau mesh kom ua kom tsis muaj tus pas nrig uas seem lossis hmoov av.
- Siv lub khob tsom iav lossis AOI tshuaj xyuas cov cuab yeej los pab rau kev soj ntsuam cov txiaj ntsig luam tawm.
Kauj ruam 2: Pib lub kaum sab xis
- Xaiv lub hauv paus lub ntsej muag raws li cov khoom lag luam (pom zoo lub kaum: 65 Degree);
- Kho cov sneeeGee bracket lossis teev pob qhov rooj rau lub hom phiaj kaum.
- Ruaj rau cov screws los tiv thaiv txoj kev sib txawv ntawm lub sijhawm ua haujlwm.
Kauj ruam 3: Teeb thawj zaug ua rau lub siab
- Xa mus rau lub rooj saum toj no los teeb tsa thawj lub siab tus nqi.
- Rau kev tuav cov ntawv luam ntawv / cov ntxhuav luam, kho lub caij nplooj ntoo hlav compression.
- Sau cov ntawv xeem thiab saib cov cam khwb no muab cov kev pab them nqi.
Kauj ruam 4: Saib xyuas cov ntawv luam tawm thiab kho kom zoo
- Saib seb puas muab tshuaj txhuam muab cov hlua puv yog qhov puv thiab hnav khaub ncaws tom qab luam ntawv.
- Txheeb xyuas qhov tsis xws luag xws li ploj cov luam ntawv, cov nkauj av, lossis taug kev.
- Yog tias kev txawv txav tshwm sim, kho lub kaum sab xis lossis siab maj mam maj mam hloov, hloov tsuas yog ib qho sib txawv ntawm ib lub sijhawm.
- Sau cov txiaj ntsig tom qab txhua qhov kev hloov kho kom tsim lub cav debugging.
Kauj Ruam 5: Tsim Cov Txheej Txheem Ua Haujlwm Txheej Txheem (sop)
- Rau huab hwm coj-tsim qauv, tsim cov txheej txheem lub kaum thiab siab tsis ua.
- Sau ib daim qauv qhia "phau ntawv luam ntawv luam ntawv".
- Kev cob qhia kev coj ua rau cov neeg ua haujlwm los ua cov txheej txheem ua haujlwm.
- Qhia cov cuab yeej yooj yim (piv txwv li, lub kaum ntse ntse gauges, siab gauges) los txhim kho debugging raug.
IV. Cov txheej txheem txuj ci siab rau kev txhim kho kev txhim kho luam ntawv luam ntawv
1. Siv segmented squeeks
Rau cov lej loj loj lossis ntau hom kev luam tawm cov haujlwm, ntu squeeks tuaj yeem tiv thaiv tsis tau kev faib tawm tsis tau.
2. Nruab siab tswv yim cov khoom siv
Qee qhov siab ntawm cov ntawv luam tawm cov chaw nres tsheb digital, ua rau kev saib xyuas lub siab tiag tiag hloov rau kev kho kom sai.
3. Ua kom muaj kev pab kho qhov muag pom kev
Hauv cov luam ntawv tseem ceeb luam ntawv, muaj koob yees duab ua ke nrog cov duab lees paub software tuaj yeem raug ntsia kom ua tiav cov kev kuaj xyuas zoo hauv online thiab kev ceeb toom tsis siv neeg.
4. Xaiv cov khoom siv zoo hauv qab
- Hlau Squeegees:Haum rau high-precision, high-ceev luam ntawv nrog lub zog hnav tsis kam.
- Polyurethane SqueeGes:Haum rau kev luam tawm tau yooj yim nrog cov khoom ntim zoo tshaj plaws.
- Composite cov khoom siv squeekses:Muab cov peev txheej ua kom tiav thiab hloov tau yooj yim, haum rau ntau yam kev siv.
Tag
Txawm yogCaw Kaw Lus Cov Tshuab Luam Ntawv Muab Tshuaj Txhuam Tshuab Luam Ntawvyog nce zuj zus hauv cov kab ntau lawm, phau ntawv solder muab cov tshuab luam ntawv tseem ceeb hauv ntau cov lag luam me thiab nruab nrab thiab cov txiaj ntsig zoo thiab raug nqi. Txhawm rau sawv tawm hauv kev ua lag luam tseem ceeb heev, txhua yam yuav tsum tau ua tiag - muaj peev xwm tseem ceeb tshaj plaws xws li squeegee lub thiab siab.
Los ntawm cov txheej txheem debugging thiab cov lus qhia tswv yim muaj nyob hauv tsab xov xwm no, peb cia siab tias SMT cov txheej txheem tsim kho, ntxiv txhim kho solder muab tshuaj txhuam thiab ntau lawm stability.
Txog Peb
Zhejiang Neoden Technology Co., tsim tsa hauv 2010, yog cov chaw tsim khoom lag luam tshwj xeeb hauv SMT lub tshuab, Refrencil tshuab luam ntawv, SMT cov khoom lag luam thiab lwm yam khoom lag luam SMT. Peb muaj pab pawg R & D & D & tus kheej, siv kom zoo dua peb tus kheej cov kev cob qhia R & D, yeej lub koob npe nrov tau los ntawm cov neeg hauv ntiaj teb.
Hauv kaum xyoo no, peb ywj pheej tsim neoden4, neoden in6, neoden k1830, neoden fp2636 thiab lwm yam khoom muag SMTE, uas muag zoo thoob ntiaj teb. Txog tam sim no, peb tau muag ntau tshaj 10,000pcs tshuab thiab xa tawm rau lawv ntau tshaj 130 lub teb chaws thoob ntiaj teb, tsim lub koob npe zoo hauv kev ua lag luam. Hauv peb lub ntiaj teb kev ua haujlwm, peb sib koom tes nrog peb tus khub zoo tshaj plaws kom xa tau cov kev pabcuam muag ntau ntxiv, kev txhawb nqa kev siab thiab ua tau zoo.